Muck Fizzou = Fuck Mizzou, or the Missouri Tigers. There is a big rivalry between MU and KU; Used by Kansas University (KU) Jayhawk fans, and is on some t-shirts.
by Jennie April 21, 2004
A term coined by KU's biggest fans which is put in a nice way of saying: Fuck Mizzou! Also, describing how bad Missouri is and they are the biggest bastards in the world. Rock Chalk Jayhawk, Go KU!
by KUFan4Life January 29, 2005